SLAU367P October 2012 – April 2020 MSP430FR5041 , MSP430FR5043 , MSP430FR50431 , MSP430FR5847 , MSP430FR58471 , MSP430FR5848 , MSP430FR5849 , MSP430FR5857 , MSP430FR5858 , MSP430FR5859 , MSP430FR5867 , MSP430FR58671 , MSP430FR5868 , MSP430FR5869 , MSP430FR5870 , MSP430FR5872 , MSP430FR58721 , MSP430FR5887 , MSP430FR5888 , MSP430FR5889 , MSP430FR58891 , MSP430FR5922 , MSP430FR59221 , MSP430FR5947 , MSP430FR59471 , MSP430FR5948 , MSP430FR5949 , MSP430FR5957 , MSP430FR5958 , MSP430FR5959 , MSP430FR5962 , MSP430FR5964 , MSP430FR5967 , MSP430FR5968 , MSP430FR5969 , MSP430FR5969-SP , MSP430FR59691 , MSP430FR5970 , MSP430FR5972 , MSP430FR59721 , MSP430FR5986 , MSP430FR5987 , MSP430FR5988 , MSP430FR5989 , MSP430FR5989-EP , MSP430FR59891 , MSP430FR5992 , MSP430FR5994 , MSP430FR59941 , MSP430FR6005 , MSP430FR6007 , MSP430FR6035 , MSP430FR6037 , MSP430FR60371 , MSP430FR6041 , MSP430FR6043 , MSP430FR60431 , MSP430FR6045 , MSP430FR6047 , MSP430FR60471 , MSP430FR6820 , MSP430FR6822 , MSP430FR68221 , MSP430FR6870 , MSP430FR6872 , MSP430FR68721 , MSP430FR6877 , MSP430FR6879 , MSP430FR68791 , MSP430FR6887 , MSP430FR6888 , MSP430FR6889 , MSP430FR68891 , MSP430FR6920 , MSP430FR6922 , MSP430FR69221 , MSP430FR6927 , MSP430FR69271 , MSP430FR6928 , MSP430FR6970 , MSP430FR6972 , MSP430FR69721 , MSP430FR6977 , MSP430FR6979 , MSP430FR69791 , MSP430FR6987 , MSP430FR6988 , MSP430FR6989 , MSP430FR69891
| ADDX.A | Add source address-word to destination address-word | ||
| ADDX.[W] | Add source word to destination word | ||
| ADDX.B | Add source byte to destination byte | ||
| Syntax | ADDX.A src,dst | ||
| ADDX src,dst or ADDX.W src,dst | |||
| ADDX.B src,dst | |||
| Operation | src + dst → dst | ||
| Description | The source operand is added to the destination operand. The previous contents of the destination are lost. Both operands can be located in the full address space. | ||
| Status Bits | N: | Set if result is negative (MSB = 1), reset if positive (MSB = 0) | |
| Z: | Set if result is zero, reset otherwise | ||
| C: | Set if there is a carry from the MSB of the result, reset otherwise | ||
| V: | Set if the result of 2 positive operands is negative, or if the result of 2 negative numbers is positive, reset otherwise | ||
| Mode Bits | OSCOFF, CPUOFF, and GIE are not affected. | ||
| Example | 10 is added to the 20-bit pointer CNTR located in 2 words CNTR (LSBs) and CNTR+2 (MSBs). | ||
ADDX.A #10,CNTR ; Add 10 to 20-bit pointer
| Example | A table word (16-bit) pointed to by R5 (20-bit address) is added to R6. The jump to label TONI is performed on a carry. | ||
ADDX.W @R5,R6 ; Add table word to R6
JC TONI ; Jump if carry
... ; No carry
| Example | A table byte pointed to by R5 (20-bit address) is added to R6. The jump to label TONI is performed if no carry occurs. The table pointer is auto-incremented by 1. | ||
ADDX.B @R5+,R6 ; Add table byte to R6. R5 + 1. R6: 000xxh
JNC TONI ; Jump if no carry
... ; Carry occurred
| Note: Use ADDA for the following 2 cases for better code density and execution. | |||
ADDX.A Rsrc,Rdst
ADDX.A #imm20,Rdst